Carbureter for explosive-engines.



Patented Spt. Il, |900. H. L. JESSEN.

ARBURETEB FOR EXPLOSIVE ENGINES.

(Applcation led Nov. 15, 1899.)

(No Model.)

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UNrrnD STATES FATENT OFFRE.

HENRY L. JESSEN, OF WA'T'SONVILLE, CALIFORNIA.

CARBURETER FOR EXPLOSIVEHENGINES.

srncrricATIoN forming part of Letters Patent Nb. 657,738, dated september 11, 1900.

Application led November 15, 1899. Serial No. 737,017. (No model.)

To all whot it nrty concern.'

Beit known that I, HENRY L. JEssEN, a citizen of the United States, residing at Watsonville, county of Santa Cruz, State of California, have invented an Improvement in EX- plosiVe-Engines and Generators; and I hereby declare the following to be a full, clear, and exact description of the same.

My invention relates to improvements in explosive-engines and generators by which the gas or vapor used in such engines is produced.

The object of my invention is particularly to provide fora constant and complete vapori- Ization of a hydrocarbon liquid, a mixture of air with the vapor thus produced to make it explosive, and a means for regulating the flow by which it is supplied only when the engine is in operation.

My invention also comprises an igniter and details of construction, which will be more fully explained by reference to the accompanying drawings, in which- Figure 1 is a sectional elevation of the generator supply-tank, showing an end view of the cylinder and its connection with the generator. Fig. 2 is a sectional View showing the inlet-valve and igniting device. Fig. 3 is a perspective View of the igniter. Fig. 4 shows the means for discharging the residue from the generator. Fig. 5 is an enlarged sectional view of the hydrocarbon-liquid inlet.

.As shown in my present illustration, and which is the preferred construction, A is a horizontally-disposed casing, and connected therewith is a pipe 2, by which exhaust products from the engine-cylinder are discharged into the casing. 3 is a discharge-pipe from the casing, through which these products of combustion are finally disposed of.

Within the casing A is a horizontally-disposed revoluble cylinder 4, support-ed by hol- Y low shafts, which are turnable in suitable gas is in turn Withdrawn by the movement of the piston in the engine-cylinder 7, which under proper conditions draws the gas and a mixture of air sufficient to make it explosive through an inlet-valve S, which connects by means of a pipe 9 with the cylindrical shaft 10 at the discharge end of the cylinder 4.

A certain amount of air is admitted into the generator through the outer end ot' the hollow shaft 5, which has an opening controlled by a spring-pressed valve 11 for that purpose, and the liquid from which the gas or vapor is generated is also admitted at the same point by means of a pipe 12, one end of which opens into the hollow shaft 5, and the other is connected with an open-topped tank 13. This tank 13 is connected by a pipe 14 with a larger closed tank 15. The object ct this connection is to supply the liquid from the larger tank 15 into the smaller tank 13 by gravitation and displacement-that is, Whenever the liquid in the tank 13 falls below the level of the connecting pipe or passage 14 a little air will pass through this pipe into the tank 15 and rising to the top will displace a portion of the liquid, which thus passes by gravitation into the tank 13. This maintains the level of the liquid in tank 13 at a point just below the upward curve 16 of the conducting-pipe, so that when the engine is not running this upward curve serves as a trap to prevent any liquid lowing into the generator.

Whenever the engine is running, the suction `caused by the piston produces a vacu um and acts to draw the vapor from the cylinder. 4 into the engine through the pipe 9 and valve 8, and the vacuum thus produced within the cylinder 4 causes an inrush of air through the valve-controlled passage 11; but this passage is purposely made too small to supply all-the air needed, and the vacuum will thus act partially to draw the liquid in through the connecting-pipe from the tank 13, the pressure of air in tank 13 being sufficient to force a little of the liquid over the trap 16 at each stroke of the engine when gas is being drawn into it.

The generator 41s rotated slowly by means of any suitable gear or pulley connection with the main shaft of the engine, the rate ot' speed being determined and the parts proportioned g as desired.

ICO

ing lever 20, centrally fulcrumed,.having one end with an adjustable Tappet 21, adapted to' contact with the lower end of the stem 22 of the valve. The opposite end of the lever 2O has an antifrictional roller journaled in it, and this is in line with a cam 23, which is mounted upon a shaft 24, suitably connected and revoluble from the engine-shaft, sothat as l[he cam revolves it tilts the lever 2O and 'raises the valve-stem 22 at each reciprocation of the engine-piston, so as to allow the products of combustion to escape when the piston returns toward the rear end 'of the cylinder.

When the speed of the engine is so great that it is not desired to produce an explosion for one or more revolutions, the exhaust-valve is kept open by the vaction of' the govern-or, (not here shown,) which by means of the lever-arm 25 or equivalent connection acts to lift the valve-stem 22 and hold the exhaust- .valve open for one or more lstrokes or until the engine and governor are running rslow enough to again allow the valve to close. When the exhaust-'valve is thus opened, the movement of the piston will simply 4draw in air through this valve and v"force it out again, but will not draw any explosive gas from the generator. As no vacuum will be produced in the generator during the 'time While the exhaust-valve thus remains open, it will be seen that no liquid will be 'drawn in from the supply-tanks. Thus the supply f liquid to the generator is very exactly proportioned to the needs of the engine, which is `an inrportant consideration.

The supply vof gas from the generato'rimay be -manually regulated by means ofa 'cock 26, and the final supply of air to mix with the gas as it enters the cylinder is regulated by means of a cock 27.

In order to ignite each charge which enters the cylinder, I have shown an i'gni'tfer or-spa-rking device, which consists `of 4contact-points 28 and 29, the ends of which are adapted to oscifllate past eachother and 'm'akeian'd 'break contacts when each `'charge of gas has been properly compressed in lvthe engine-cylinder. The arm carrying the contact-point y'28 projects from a journal-shaft 30, and the `arm carryi-ng the contact-point y29 ismountedupon a shaft 3l, which projects through lthe igniting-chamber and has upon its outer end a transverse arm 32. This arm is alternately rocked or oscillated vto one s'ideand -the other by means of arms 33, projecting in opposite directions from the shaft 24, which also 'car'- ries the exhaust-valve-actuating cam 23, as previously described. The revolution-of vthis shaft 24 alternately brings one-'of theta'r'ms 33 into contact with the'tr-ansversearm 32, andas this contact takes Aplace upon opposite sides of the shaft 3l the arm 32 will be os'cillated,

i moved by the heat will be delivered.

and with it the shaft 3i and the contact-point 29. This causes this contact-point29 to brush past the point 28, the latter turning or oscillating sufficiently to allow the point 29 to pass, and this turns the shaft 30, which has upon it a projecting lug 34. This lug` enters between the two leaves of 'a spring 35, and this spring yields whenever the points 29 and 28 pass each otherg `but as soon as 29 has passed 28 the action of the spring 35 upon the lug 34 will immediately return the arm 23 to its normal position, and this makes a sudden break between the two contact-points and produces a spark which is vsufficient to explode the charge of gas within the cylinder.

The cylindrical generator4 has the end with which the discharge connects made of larger diameter, so as to form an annular channel 37, and into this channel any resid ue from the hydrocarbon liquid which remains after all the gas or volatile products Ahave been re- In order to remove this residue and prevent its accumulation in the generator, I have shown a spirally disposed or coiled pipe 38, the outer end of which extends into the channel 37, so that as rthe cylinder and coiled pipe revolve this end Will at each revolution `dip up any liquid which may have settled into this channjel and W-ill'convey it to the center,'where the pipe 'discharges outwardly through a discharge-pipe 39.

Having thus described my invention, what I claim as new, and desire to see-ure by Letters Patent, is-

1. The combination with an `rexplosive-engine and the pumping and propelling piston thereof, of a horizontally-disposed rotating cylinder 'with interior spiral ribs, and means forsu-pplying hydrocarbon liquid thereto, an

'exterior casing snr-rounding said cylinder having @inletanddischarge passages and connection between the exhaust of the 'engine and the inlet-'passage of said casing.

'2. In an explosive-engine, a genera'torcomprising an exterior:horizontally-disposed casing with inlet and outlet passages and connections yby which the exhaust products from the cylinder are ldischarged thereunto, a tcylinder journaled and revol-uble within ysaid casing having spirally-disposed ribs ortianges extending yfrom end to end, mea-ns for supplying *hydrocarbon liquid at one end of the cylinder, anda tubular connection between the oppositeend'of the cylinder and the inletv-alve :of the engine.

v3. -Ifn Van explosive-engine, a horizontallyjournalfed revol'uble cylinder having spirallydisposed interior flanges, an exterior ifnclosing oasi-ng through which the hot productsof combustion from the engine are discharged, ahollow journal-shaft at one end and pipe connection with the'inlet-valve ofthefengine, a hollow jour-nal atthe opposite'end,.an opening through which air is admitted into the generatoridnringthe operation of the engine.

4. In an explosive-engine, -a 'horizontally- IOO IIO

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@ms e journaled revoluble cylinder with spirallyarranged interior flanges, a stationary jacket through which heat from the exhaust products ofthe engine is applied, a hollow journal at one end and pipe connection with the inlet-valve of the engine, a similar journal at the opposite end, with valve-controlled airinlet opening and a pipe through which the hydrocarbon liquid is also admitted thereto.

5. In an explosive-engine, a horizontallyjournaled revoluble cylinder, with means for advancing the liquid therethrough, an eXterior stationary jacket through which the hot exhaust products from the engine are discharged, a hollow journal at one end of the generator and pipe connection with the inletvalve of the engine, a similar hollow journal with controlling-valve through which air is admitted into the generator by the vacuum produced by the engine, supply-tanks and pipe connection with said inlet-passage whereby the hydrocarbon liquid is also admitted simultaneously.

6. In an explosive-engine, the horizontallyrevoluble cylindrical generator with interior spirally-disposed flanges by which the liquid is advanced from the inlet toward the discharge end, a channel at the discharge end of larger diameter and a coiled pipe, the outer end of which dips into the lower part of said channel whereby the residue is constantly collected therefrom.

'7.W In an explosive-engine, a horizontallyjournaled revoluble cylinder with means for advancing the hydrocarbon liquid therethrough, means for heating the generator to vaporize the liquid, a pipe connection from one end of the generator to the inlet-valve of the engine, a closed main tank and an opentopped supplemental supply-tank with connection between, and upwardly-curved trappipe connecting the supplemental chamber with the inlet end of the generator whereby the vacuum produced by the engine-piston acts to draw the liquid into the generator.

8. In an explosive-engine, a horizontallyjournaled revoluble generator, with means for advancing the liquid therethrough, and means for heating the same, an open-pipe connection between the discharge end of the generator and the inlet-valve of the engine whereby a vacuum is produced in the generator by the movement of the engine-piston, a pipe-and-trap connection between the opposite end of the cylinder and the supply- JJtank whereby the hydrocarbon liquid is drawn into the generator when the engine-piston produces a Vacuum and the supply is cut olf when the inlet-Valve of the engine has not opened or the engine is at rest.

In witness whereof I have hereunto set my hand.

HENRY L. JESSEN. Witnesses:

E. L. PARLET,

JAMES E. EATON. 

